CVE-2007-1969 in MyBlog
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in admin/modify.php in Sam Crew MyBlog remote attackers to inject arbitrary web script or HTML via the id parameter.
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Analysis
by VulDB Data Team • 10/19/2017
The vulnerability identified as CVE-2007-1969 represents a classic cross-site scripting flaw within the Sam Crew MyBlog application's administrative interface. This security weakness exists in the admin/modify.php file where user input is not properly sanitized before being processed and displayed back to users. The specific parameter affected is the 'id' parameter which serves as an entry point for malicious actors to inject harmful scripts into the web application's output. Such vulnerabilities fall under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and well-documented web application security flaws in the industry.
The technical exploitation of this vulnerability occurs when remote attackers manipulate the id parameter in the admin/modify.php endpoint to inject arbitrary web scripts or HTML content. When the application processes this malicious input and renders it within the web page context without proper output encoding or validation, the injected code executes in the context of other users' browsers who view the affected page. This creates a persistent threat where legitimate users may unknowingly execute malicious payloads that could steal session cookies, redirect them to phishing sites, or perform unauthorized actions on their behalf. The attack vector specifically targets the administrative interface, potentially allowing attackers to gain elevated privileges or compromise the entire blog management system.
The operational impact of this vulnerability extends beyond simple script injection, as it represents a critical security gap that could enable attackers to compromise the entire administrative environment. Successful exploitation could allow unauthorized individuals to modify blog content, delete posts, manipulate user accounts, or even escalate privileges within the application. The vulnerability affects the confidentiality, integrity, and availability of the web application by creating a persistent backdoor for malicious activities. According to ATT&CK framework, this vulnerability maps to T1059.007 for Command and Scripting Interpreter and T1566.001 for Phishing, as attackers could leverage this flaw to deliver malicious payloads through crafted web content. The risk is particularly elevated in administrative contexts where attackers could gain access to sensitive data and system controls.
Mitigation strategies for CVE-2007-1969 should focus on implementing proper input validation and output encoding mechanisms throughout the application. The most effective approach involves sanitizing all user-provided input, particularly parameters like 'id' that are used in dynamic content generation. Implementing proper HTML escaping and context-appropriate encoding techniques will prevent malicious scripts from executing when rendered in web browsers. Additionally, developers should employ parameterized queries and input validation libraries to ensure that only expected data formats are accepted. The application should also implement proper access controls and authentication mechanisms to limit the impact of potential exploitation. Security headers such as Content Security Policy should be configured to further restrict script execution and prevent unauthorized code injection. Regular security audits and vulnerability assessments should be conducted to identify and remediate similar weaknesses in the application codebase, following the principle of least privilege and defense in depth as outlined in industry security standards.